$OpenBSD: patch-src_gui_instance_cpp,v 1.1 2015/09/24 10:40:16 ajacoutot Exp $

Fix build with libsigc++ >= 2.6.0.

--- src/gui/instance.cpp.orig	Thu Jul  9 09:33:04 2015
+++ src/gui/instance.cpp	Thu Sep 24 11:08:06 2015
@@ -54,7 +54,6 @@
 
 #include "autorecover.h"
 #include <sigc++/retype_return.h>
-#include <sigc++/retype.h>
 //#include <sigc++/hide.h>
 #include <synfig/valuenodes/valuenode_composite.h>
 #include <synfig/valuenodes/valuenode_duplicate.h>
